Iga Świątek defeated Laura Siegemund in the final, 6–0, 6–1 to win the singles tennis title at the 2023 WTA Poland Open.^[1][2] She did not drop a set en route to her 15th WTA Tour-level title. Siegemund reached her first hard court final and first WTA Tour singles final in six years.

Caroline Garcia was the reigning champion,^[3] but chose not to defend her title.

	Semifinals							Final
	1	Iga Świątek	6	78
		Yanina Wickmayer	1	66
								1	Iga Świątek	6	6
									Laura Siegemund	0	1
		Laura Siegemund	5	6	6
		Tatjana Maria	7	3	4

	First round							Second round							Quarterfinals							Semifinals
	1	I Świątek	6	6
		N Abduraimova	4	3				1	I Świątek	6	6
		C Liu	77	3	6				C Liu	2	2
		Y Yuan	63	6	2										1	I Świątek	6	6
	PR	K Kučová	5	3											8	L Nosková	1	4
		V Hrunčáková	7	6					V Hrunčáková	3	3
	Q	J Fett	6	64	3			8	L Nosková	6	6
	8	L Nosková	4	77	6																	1	I Świątek	6	78
	3	K Siniaková	5	2																			Y Wickmayer	1	66
		H Watson	7	6					H Watson	6	5	6
		J Ponchet	4	6	5			Q	Y Hatouka	2	7	1
	Q	Y Hatouka	6	3	7											H Watson	4	3
		N Hibino	2	4												Y Wickmayer	6	6
		Y Wickmayer	6	6					Y Wickmayer	6	6
		T Martincová	77	6					T Martincová	2	2
	5	S Zhang	63	4

	First round							Second round							Quarterfinals							Semifinals
	7	L Fruhvirtová	1	64
		L Stefanini	6	77					L Stefanini	6	6
	Q	A Raina	6	4	64				J Burrage	4	1
		J Burrage	4	6	77											L Stefanini	65	7	3
	WC	M Chwalińska	4	1												L Siegemund	77	5	6
		L Siegemund	6	6					L Siegemund	6	6
		Xiy Wang	4	2				4	L Zhu	4	4
	4	L Zhu	6	6																			L Siegemund	5	6	6
	LL	N Stevanović	3	1																			T Maria	7	3	4
		T Maria	6	6					T Maria	6	6
		C Tauson	6	6					C Tauson	4	0
		D Snigur	2	3												T Maria	6	1	6
	Q	R Šramková	6	6											Q	R Šramková	3	6	1
	WC	W Ewald	2	2				Q	R Šramková	7	3	7
		A Sasnovich	6	60	3			2/WC	K Muchová	5	6	5
	2/WC	K Muchová	4	77	6

	First round							Qualifying competition
	1	Natalija Stevanović	2	6	6
		Peangtarn Plipuech	6	4	2
								1	Natalija Stevanović	2	77	65
								8	Jana Fett	6	64	77
		Weronika Falkowska	64	2
	8	Jana Fett	77	6

	First round							Qualifying competition
	2	Rebecca Šramková	4	6	6
		Naiktha Bains	6	2	4
								2	Rebecca Šramková	6	6
								6	Maddison Inglis	1	0
	WC	Martyna Kubka	4	64
	6	Maddison Inglis	6	77

	First round							Qualifying competition
	3	Ankita Raina	6	6
		Olivia Lincer	3	1
								3	Ankita Raina	4	6	6
									Joanna Garland	6	3	1
		Joanna Garland	6	6
	5	Gabriela Knutson	1	2

	First round							Qualifying competition
	4	Valeria Savinykh	6	6
	WC	Stefania Rogozińska Dzik	0	1
								4	Valeria Savinykh	6	4	2
								7	Yuliya Hatouka	4	6	6
		Kateryna Volodko	1	1
	7	Yuliya Hatouka	6	6

• Main draw
• Qualifying draw